Duplicating machine



' l 1,614,741- Jan' 18 1927 T. A. lHr-YER Er Ax.

DUPLIGATING MACHINE Filed Oct. 22, 1923 7 Sheets-Shet l artt/7 Z Mure.

if f5 Jan. 18,1927. 1,614,141

T. A. HEYER ET AL DUPLICATING MACHINE Filed 0G13. 22, '1923 7 Sheets-Shet 2 @das Jan. 1s, 1927.'

T. A. HEYER El' AL DUPLICATING MACHINE Filed Oct. 22, 1923 7 Sheets-Sheet 5 m 0 U w @C NNJNJ. .N wNJwwl M NNH MN5) WN lll ai@ u Jan. 1s, 1927. 1,614,741

T. A. HEYER El' AL DUPLICATING MACHINE Filed O01;- 22, 1923 7 Sheets-Sheet 4 Jan'. 18, 1927.

T. A. HEYER El' AL DUPLICATING MACHINE 7 Sheets-Sheet 5 Filed OGt. 22, 1923 Jan. 18,1927. 11514341 T. A. HEYER ET AL DUPLICATING MACHINE Filed Oct- 22, 192:5 7 sheets-shet 6 j @LQ fd 2? Jan; 1s, 1927. 1,614,741

T. A. HEYER Er Al.

DUPLICATING MACHINE Filed oct. 22, 1925 7 Sheets-Sheet` 7 2f MM2/' Patented Jan. 18, 1927.

UNITED STATES lPATENT OFFICE.

THEODORE A. HEYER AND MORTON L. VANCE, OF CHICAGO,4 ILLINOIS, ASSIGNOBS T0 THE HEYER DUPLICATOR COMPANY, INC., OF CHICAGO, ILLINOIS, A CORPORA- TION OF ILLINOIS.

DUPLICATING MACHINE.

Application filed October 22, 1923.

This invention relates to duplicating machines of the class which employ a gelatine band or strip mounted upon the surface of a table and adapted to impart impressions to blank sheets of paper which are impressed upon the gelatine band by means of rollers which serve to feed the paper flatwise to the band and impart the necessary pressure to secure the impression.

The presentinvention embodies a compression roller which always maintains a fixed horizontal relation with respect to the surface of the table in conjunction with a feeding roller which is adapted to move toward and from the compression roller in order to hold the paper firmly against the compression roller. This arrangement insures uniform coaction between the compression roller and the table at all times and permits the compression roller to be solidly and rug-- gedly constructed without imposing upon the operator the duty of raising and lowering the compression roller itself, as has been the practice of certain duplicator machines at present on the market.

The invention further reates to means for feeding the paper into co-active relation with the compression roller and feeding roller in such a manner as to insure uniformity in applying the paper to the gelatine band; and in a manner designed to protect the gelatine surface against abrasive action of the compression roller when it first engages the gelatine surface.

The invention further relates to the means provided for insuring definite and certain co-action between the paper gauge; the feed roller and the compression roller, and to the relationing of these parts in such a manner as to readily and certainly strip the paper from the surface of the gelatine band after the impression has been taken; and to the `general construction and arrangement of the machine as a whole and the constituent parts thereof.

In the drawings: n

Figure l is a side elevation of the machine with a portion thereof broken away and the handle standing in partially advanced po` sition; Y

Fig. 2 is a top or plan view of the same;

Fig. 3 is an end view of the machine from the position occupied by the operator;

Fig. 4 is a cross sectional View of the roll- Serial No. 689,956.

ers and paper stop in the initial position occupied by theparts when a sheet of paper is being fed to the rollers;

Fig. 5 is .a similar view with `the feed roller advanced into contacting relation with the compression roller;

Fig. 6 is a plan view of the end of the carriage showing certain parts illustrated in Figs. 4 and 5;

Fig. 7 is a view similar to Fig. 4 showing the feed and compression rollers in contacting relation with the paper stop retracted to permit the laying of the paper sheet upon the gelatine surface;

Y Fig. 8 is an end elevation of the same mechanisms carried by the carriage, taken on the line 8 8 of Fig. 2, with the end bar of the carriage broken away; Y

Fig. 9 is a longitudinal section of the end of the table showing the means for feeding the gelatine band tothe table surface;

l F ig. 10 is a view partly in section showing the mounting for one of the gelatine band spindles; i

Fig. 11V is a sectional view showing the handle and ratchet for feeding the gelatine band; l Fig. 12is a view of the table with the center section broken out.l and showin the dogs for regulating the direction of eeding of the gelatine band; and i Figs. 13, 14; 15, 16; and 17 are diagrams showing the relative positions of the operative parts at. various stages in the laying of the paper upon the gelatine surface. Y

The machine as a whole vis mounted upon a frame 2() which comprises side platos il?, having depending feet 23 which, in conjunction with the tie rods 25, serves to unite the frame into a rigid integral structure. The table top 24 is preferably provided with a soft covering. 26 of felt or like material to afford a feeding surface for the gelatine band 27, whichV latter passes over guide rollers 29 located in proximity to the ends of the tabletop. c

The gelatine band, as is customary in machines of this type, is made of a length much greater than that of the exposed portion of the band, so that successive sections of the band may be fed to exposed position as occasion may require. rThe band is'carriedy at each end upon a spindle 30 journaled below the table top and within the structure of the frame, as indicated particularly in Fig. 9. The mountings for the spindles will be described presently.

Along one side of the table near the top thereof is located a guide rail 31, the ends of which guide rail are entered into lugs 32 atthe ends of the side plates of the frame, and the guide rail is preferably of circular cross section and rigid construction and stands slightly away from the approximate side plate so as to afford a guiderail for the travel'of the carriage 33, the construction andarrangement of which, with the associated parts, constitute the principal features of the present invention.

The carriage 33, asbest shown in Figs. 2 and 6, is of rectangular shape comprising cross rails 34 and end rails 35, giving to the carriage as a whole a boxlilre formation open at the top and bottom. At each corner of the carriage on an end thereof is a guide lug 36 which embraces the proximate gnide rail, and the two lugs in conjunction afford a slidable mounting for the back and forth travel of the carriage as a whole. This carriage frame, near each of the forward corners thereof, has an inwardly projecting lug 37 (see Fig. 6), to which is pivoted a rear'- wardly extending arm 38 provided near its center with a depending lug 39 which affords a journal mounting for a compression roller 40, which roller has a thick rubber sheath or casing 41 which bears directly against the surface of the gelatine band or the paper laid thereon, and in order to provide the necessary compression for the roller, a coil spring 42 is interposed betweenthc forward end of each arm 38 and an over-- hanging lug 43, which springs upwardly from the rear rail 34 of the carriage frame, the same arrangement being duplicated at each end of the compression roller. VThis arrangement insures a constant and uniform application of pressure by the compression roller to the table or the gelatine hand and paper supported thereon.

Immediately in advance of the compression roller, and in parallel relation therewith, is a feed roller 44 of much smaller diameter than the compression roller, which feed roller in whatever position of adjustment always stands in elevated relation to the table surface, and the object and purpose of the feed roller is to carry the end of a sheet of paper into contact with the compression roller and to maintain such contact until the paper has been .laid upon thek gummy surface of the gelatine and-has been firmly gripped against such surface by the eernpression roller.

The roller 44 vis journaled at each end within the lower end of a `hanger 45, the upper end of which is loosely j ournaled upon a ypin 46, entered through and carried by an ear 47 upwardly projecting from the arm 38 near the forward end thereof, the same arrangement being provided at each end. The upper end of each hanger 45 is providefl with a rearwardly extending finger 48 which co-acts with lower finger 49 through the medium of an intermediate coil spring 50, a guide pin l being provided to prevent displacement of the spring.

The lower finger 49 extends rearwardij from a bearing head 52 mounted upon the pin 46, and the finger 49 also terminates in a depending tail piece 53 which is groovet ta straddle the upper edge of a slide bar of offset configuration, the relation being 'such that when the slide bar is'in the position indicated in Fig. 4, the tail piece 53 will embrace the edge of the slide bar at a point im mediately to the rear of the turn of the shoulder thereof, but when the slide bar is drawn rearwardly, as in Figs. 5 and 8, it will swing the tail piece with it thereby ele vating the lower finger 49 and correspondingly elevating the upper finger 48 through the medium of the interposed spring which lifting of the upper finger will rock the hanger and bring the feed roller 44 into contact with the compression roller, the same action taking place concurrently at each end of the carriage frame. ,l

The paper is carried on an inclined plate 55 provided with a side flange 56 adjustable to the width of the stack of papers, the arrangement constituting a chute terminating' immediately above the feed roller and iiiclined to feed the sheets of papers in substantially tangential relation to the compression roller.

Below the feed roller is located a paper stop plate 57, the forward edge of which` when elevated, will Contact the compression roller at a point slightly below the projected line of intersection of the paper chute with the surface of the compression roller, and the paper stop plate at its forward edge is upturned to afford a connecting bar 58 which, at each end, is provided with an ear 59 which is pivoted by a pin 60 to an arched link 61, the forward end of which is provided with a slot 62 which receives a pin 63 outstanding from a lug 64 formed on a handle rock bar 65 which is journaled by trunnions 66 between the end walls of the carriage frame, extending from end to end of the carriage.

At the center of the handle rock bar is located an upstanding handle 67 which, at the beginning of a paper feeding operation, will occupy the position indicated in Fig. 4. The rear end of each shouldered slide plate 54 is pivoted between ears 68 depending from the handle rock bar, and each slide plate at its forward end is provided withV a slot 69 which is guided by a stud 70 laterally projecting from the adjacent hanger 45 (see Fig. 8) which hangers at opposite ends llt) Lis

serve to mount the feed roller. The stud in conjunction with the slotted end of the finger 53 serves as a guideway for the rear end of the shouldered guide plate in the fore and aft movements occasioned by the manipulation of the handle.

One of the ears 68, on one end of the handle rock bar, carriesa notched dog 71 provided with a tail 72 adapted when the carriage is drawn to its rearmost position, to contact the stop 73 (see Fig. 2), so that in this position the dog will be lifted. Vhen the dog is lowered the notch in its lower edge will engage with a small block 74 (see Fig. 8), which will thus serve to lock the handle, whenV thrown to its foremost position, and thereby hold the parts during the travel of the carriage in the relation indicated in Fig. 8.

The mountings for the gelatine band will now be described in detail. Each of the spindles 30 is provided at each end with a pintle 75 which affords a journal for the spindle and on opposite sides of the pintle are formed recesses 76 which are bored through a. cap plate 77. On the operating side of the machine is located a hub 78 provided with a pair of bores 79 in each of which is mounted a pin 8O backed by a yspring 8l and held in place by means of a screw plug 82. The hub is journaled within a boss 83 formed on the side wall of the frame, and secured to the hub is a ratchet wheel'84 outside of which is secured a disk 85 provided with a handle 86.

The pintle 75 at the opposite end of the spindle 30 is journaled within a socket recess 87 formed in a spring arm 88 secured to the adjacent wall of the side frame, and in line with the socket recess, and leading thereto is a groove or depression 89, the arrangement being such that either end of the spindle may be engaged with the hub 78 by first aligning the pintle rwith a. recess 90 in the hub and then pushing back the opposite end of the spindle along the groove 89 in the spring arm 88 which will yield sufficiently to permit the pintle to be finally sprung into the socket recess after which the spring backed pins 8O will spring forward into the cooperating bores 76 as soon as the latter are registered with the pins. The spring arm possesses sufiicient yieldability to permit manipulation of the parts above indicated, and since either end of the spindle may be engaged with'the driving mechanism, it is obvious that the position of either spindle may be reversed as occasion may require.

An inspection of Fig. 12 will indicate that the same sort of a mounting is provided for each of the two spindles at opposite ends of the machine, the only difference being in respect to the direction of the teeth in the respective ratchets 84. Each of these ratchets co-operates with a dog 91- which is pivoted to a screw stud 92 (see Fig. 11), entered into an adjacent portion of the side frame and each of the dogs is provided with a handle 93 working through a slot 94 in a cap plate 95, so that either-of the dogs may be disengaged, and either of the handles 86 used to wind the gelatine band in the desired direction. After the desired portion of the band has been drawn to position ou the table top and tensioned to the desired degree, both dogs may be thrown into locking relation and the tension maintained.

In operation with the parts in position shown in Fig. 4, a sheet of paper introduced will slide down the paper guide or chute 53 until its lower edge is arrested by the forward edge of the paper stop plate 57 which at this stage will abutv squarelyv against the surface of the compression roller. With the paper thus positioned, the handle will be thrust forwardly or to the right in Fig. 4, which forward thrust. will cause the handle rock bar 65 to vturn on its trunnions and first assume the position indicated in Fig. 5. This initial movement causes the rearward movement of the slide bars 54 on opposite sides of the machine, which movements serve to tilt up the finger 49 and with it the finger 48, thereby swinging the feed roller into contact with the paper theretofore fed onto the compression roller, so that the lower end of the paper sheet will be tightly clamped between the two rollers, with the paper stop plate still in paper engaging'position, as in Fig. 5.

It will be observed, from F ig. 5, that this initial movement of the handle has drawn the pin 63 to the forward end of the slot 62 in the arched arm 61, so that a continued movement of the handle, as in Fig. 7, will swing back the paper stop into the position shown in Fig. 7. These movement-s exhaust the free movement of the handle and thereafter a continued thrust on the handle will advance the entire paper carriage, so that the paper will be rolled over and tightly compressed against the in'ipregnated surface of the gelatine, thereby securing a copy of the ink impression applied to the gelatine sur'- face. Throughout this travel, the paper will be held tightly between the compression and feed rollers, but the compression roller only will press against the, table surface, sot-hatthe two rollers in conjunction serve to tightly hold and compress the paper at two points on the periphery of the compression roller at all times during the advance and recession of the carriage, sothat a firm and clean impression will be secured.

After the carriage has been rolled forward to the required degree to secure an impression, its movement will be reversed by drawing back on the handle, but during the return travel, therposition of the feed roller will be maintained by reason of the lock dog VIl.)

71 which holds the handle in lockedrelation with theremaining mechanisms mount- Cil edV upon the carriage. When, however, the carriage has been retractedto the starting point, the dog 7ill be kicked up and the handle released, so that a continued pull thereoinafter the carriage has come to rest, will restore the parts to the position indiated in Fig. 4, which permits the paper to be readily removed and a new sheet inserted, During the entire rearward movement of thc carriage, however, the paper will be within the bite of the rollers, so thatthe paper will be stripped away evenly and certainly from the gelatine surface in exactly the same manner in which it was originally applied thereto with the result that a perfect impression will be secured.

The invention is one in which the movements of the feed roller and theV paper stop are positively timed to certainly7 posit-ion and uniformly feed the paper, and at the same time the lower end of the paper will be fed to the compression roller sutiiciently far to interpose itself between the compression roller and the rear end of the exposed gelatine band, so that the latter, during the Vprinting operations, will never be directly engaged byV the compression roller, which thereby obviates wear and tear as is the case with certain machines in use today.

The successive relations assumed by the rollers with respect to the gelatine Vstrip are indicated in Figs. 13, 14, 15, 16 and 17 from which it will be observed that the` compression roller, before it reaches the gelatine band, will have rotated sufficiently to interpose the paper between itself and the gelatine surface before the compression roller reaches a position in tangential relation to the gelatine band.

The invention as a whole is positive and certain in its movements and easy in its operation, since the heavy `compression roller is never movedor lifted by the operation of the handle, the oper-ating movements icing confined to the relatively light feeding roller and paper stop plate. This arrangement enables the compression roller to be constructed of heavy material and to be spring pressed to any desired degree without imposing upon the operator the burden of maintaining a compressive contact between the roller andthe gelatine surface.

7e claim:

11. In a. duplicating machine, the-combina-Y tion of a table, a gelatine band mounted on the table, a traveling carriage in coacting relation with the table, a compression roller carried by the carriage and constantly held in compressive rolling contact with the gelatine band on the table, a feeding roller adapted to be moved toward and from .the compression roller, Vand'means for feeding paper between the two rollers when in open relation, substantially as described.

2. In a duplicating machine, the combination-of a table, a gelatine band mounted on the table, a traveling carriage in coacting relation with the table, a compression roller .carried by the .carriage andconstantly held in compressive rolling` contact with the gelatine bandl on the table, a Vfeedingy roller adapted to bemoved toward and fromthe compressionroller, means for feeding paper between the two rollers when in open relation, a handle mounted on thek carriage, and connections between the handle and the feeding roller to initially move thelatter into compressive relation with the compression roller, the handle thereafter serving to advance the carriage along the table, substantially as described.

3. In a duplicating machine, the combination of a table, a gelatine band mounted on the table, a traveling carriage in coacting relation with the table, a compression roller carried by the carriage and constantly held in compressed relation to the table, a feeding roller adapted tobe moved tow rd and from-the compression roller, means for feeding paper between the two rollers when in open relation, a handle mounted on the carriage, connections between the handle and the feedingroller toinitially move the latter into compressive relation with the compression roller, the handle thereafter serving to'advance the carriage along the table, and means for locking the handle in advanced relation during the back and forth travel of the carriage, substantially as described.

4. In a duplicating machine, the combination of aA table, aA gelatine band mounted on the table,- a traveling Vcarriage in coacting relation with the table, a compression roller carried by the Vcarriage and constantly held in compressed relation to the table, a feeding roller adapted to be moved toward and from the compression roller, means for feeding paper between the two rollers when in open relation, a handle mounted on the carriage, connections between the handle and the feeding roller to initially move the latter into compressive re- 1 lation with the compression roller, the handle thereafter serving to advance the carriage along the table, -means for locking the handle in advanced relation during tlie'back and for-th travel of the carriage, and means for automatically releasing the handleV at the termination` of the back movement of the carriage, substantially as described.

5. In a duplicating machine, the combination of ya table, a gelatine band mounted upon the table, a carriage movable back and forth Lalong the table a compression roller jourstop plate for initially moving the feed roller into compressive relation to the compression roller, and thereafter retraeting the paper stop plate from the compression roller, the handle thereafter serving to impart a back and forth movement to the carriage, substantially as described.

(i. In a. duplicating machine, t-he combination of a table, a gelatine band mounted upon the table, a carriage movable back and forth along the table, a compression roller 'journalled'within the carriage and held in H compressive relation to the table, a feed roller 1n parallel relation with the compression roller, a mounting for the feed roller adapted to move the latter toward and from the compression roller, a paper chute adaptedto feed paper between the two rollers, a paper stop plate adapted to limit the initial feeding of the paper between the rollers, a handle trunnioned within the carriage, conneet-ions between the handle and the feed roller, and between the handle and the paper stop plate for initially moving the feed roller into compressive relation to the compression roller, and thereafter reti-actingr the paper stop vplate from the compression roller, the handle thereafter serving to impart a back and forth movement to the carriage, and means for locking the handle during the movement of the paper carriage, substantially as described.

7. In a duplicatingT machine, the combination of a table, a gelatine band mounted upon the table, a carriage movable back and forth along the table, a compression roller jour- .nailed within the carriage and held in compressive relation to the table, a feed roller in parallel relation with the compression roller, a mounting for the feed roller adapted to move. the latter toward and from the compression roller, a paper chute adapted to feed paper between the two rollers, a paper stop plate adapted to limit the initial feeding of the paper between the rollers, a handle trunnioned within the carriage, connections between the handle and the feed roller, and between the handle and the paper stop plate for initially moving the feed roller into compressive relation to the compression roller and thereafter retraeting the paper stop plate from the compression roller, the handle thereafter serving to impart a back and' forth movement tothe carriage, means for locking the handle during the movements of the paper carriage, and means for automatically unlocking the handle upon the completion ofthe return movement of the carriage, substantially as described.

8. In a duplicating machine, the combination of a table, a gelatine band mounted upon the table, a carriage slidably mounted on the table, a compression roller carried by the carriage and constantly held in com ressive rolling relation to the gelatine banc on the table, a paper feed roller adapted to be moved toward and from the compression roller, a paper chute for advancing sheets of paper between the two rollers when in separated relation, a paper stop plate adapted to limit the initial feeding movements of the paper, means for moving the feed relier into compressive relation with the compression roller, means for retracting the paper stop plate, and means for imparting back and forth movements to the carriage, substantially as described.

9. In a duplicating machine, the combination of a table, a gelatine band mounted upon the table, a carriage slidably mounted on the table, a compression roller carried by the carriage and constantly held in compressive rolling relation to the gelatine band' on the table, a paper feed roller adapted to be moved toward and from the compression roller, a paper' chute for advancing sheets of paper' between the two rollers when in sepa rated relation, a paper stop pla-te adapted to limit the initial feeding movements of the paper, means for moving the feed roller into compressive relation with the compression roller, means for retracting the paper stop plate, and means for imparting back and forth movements to the carriage, said latter means being effective to move the carriage 'after the feed roller has been advanced to the compression roller and the paper stop has been retracted therefrom, substantially as described.

l0. In a duplicating machine, the combination of a table, a duplicating band mounted upon the table, a carriage slidably mounted on the table, a compression roller,

Ya handle trunnioned to the carriage, and a draw bar pivoted to the handle and adapted when the handle is initially moved to bring the feed roller into compressive relation with the compression roller, the handle thereafter serving to impart back and forth movements to the carriage, substantially as described.

11. In a duplicating machine, the combination of a table, a duplicating band mounted upon the table, a carriage slidably mounted on the table, a compression roller, spring pressed journal mountings on the carriage for holding the compression roller constantly in rolling Contact with the duplicating band on the table, a feed roller held in elevated relation with respect to the table, a pair of hangers for the feed roller, said hangers being pivoted to the carriage, a handle trunnioned to the carriage, a draw bar pivoted to the handle and adapted When the handle is initially moved to bring the.

feedroller into compressive relation with the compression roller, the handle thereafter serving to impart back and fort-h movements to the carriage, a paper stop plate pivotally mounted Within the carriage and adapted when in stopping relation to contact the compression roller at a point below the line of contact of the feed roller, and a connection between the handle and the paper stop plate for retracting the latter by movement of the handle after the feed roller has been moved to compressive Contact with the compression roller, substantially as described.

l2. In a duplicating machine, the combination of a'table, a duplicating' band mounted upon the table, a carriage slidably mounted on the table, a compression roller, spring pressed journal mountings on the carriage for the compression roller, a. feed roller held in elevated relation with respect to the table, a pair of hangers for the feed roller, said hangers being pivoted to the carriage, a handle trunnioned to the c-arriage, a draw bar pivoted to the handle` and adapted when theV handle is initially moved to bring the feed roller into compressive relation with the compression roller, the handle thereafter serving to impart back and forth movements to the carriage, a paper stop plate pivotally mounted Within the cared upon the table, a carriage slidably" mounted upon the table, a compression roller, spring pressed journal mountings on the carriage for the compression roller, a feed roller held in elevated relation with respect to the table, a pair of hangers for the feed roller, said hangers being pivoted to the carriage, a handle trunnioned to the carriage, a draw bar Vpivotedto the handle and adapted when the handle is initially moved to bring the feed roller into oompressive relation with the compression roller, the handle thereafter servingto impart back and forth movements tothe carridge, a paper stop plate pivotally mounted Within the carriage Vand adapted When in stopping relation to- Contact the compression roller at a point belou7 the line of contact of the feed roller, a connection between the handle and the paper stop plate for retracting the latter by movement of the handle after the feed roller has been moved to compressive contact With the compression roller, means for locking the handle in advanced position during the back and forth movements of the carriage, and means for automatically releasing the handle'loclr upon the termination of thefreturn movement of the carriage, substantially as described.

' THEODORE A. HEYER.

MORTON L. VANCE. 

